Aluminum nickel alloy



Patented Dec. 3 I924,

a fear arena JOSEPH M. SGHWARZ, or nnw YORK, n. Y.

ALUMINUM NICKEL ALLOY.

No Drawing. Application filed August '16, 1922. Serial No. 581,026.

To all whom it may concern: My alloy consists of aluminum, a rela- Be it known that I, J osnrrr M. SoHWARz, ti'vely small proportion of copper and of a citizen-of the United States. and resident nickel in still smaller amounts. The aver 55 of New York, in the county of New York age amount of aluminum in my alloy is l and State of New York. have invented eerbetween 85. per cent and 96 per cent; the

tain new and useful Improvements in Alubalance .to be made up with copper and 1 minum' Nickel Alloys, of which the follownickel in a proportion of 2 for copper and ing is a specification. 1 for nickel. By varying these proportions,

' This-invention relates to aluminum alloys we. may obtain a series of alloys adaptable and has for its main obiect to provide an todifferent purposes.

all f th menti d type which willhave Ihave also discovered acertain method of greatly improved physical properties against, alloying, as the best adapted to produce my the alloys of the mentioned character used new metal. This process is as follows: 5 at the present time. I especially aim to I first melt the copper-down and introprovide an aluminum alloy which will have three the nickel into. it as a hardener. .The all the desirable characteristics of such alalloy of these two metals isthen poured loys as used at present, mainly in building either into shot-form or into stri s of a automobiles, aeroplanes, etc., as for instance, thickness of about A ofan inch. The alulow specific gravity, resistance to acids, and minum is afterwards melted at a temperaother corrosives, but at the same time, havture of about lstOO Fahrenheit, the usual ing a greatly increased tensile strength. and way, the above mentioned hardening alloy d cti1ity I I lntroduced into the aluminum bath and Many aluminum alloys have been inventstirred constantly until complete amalga- 7 ed and used for the above mentioned purmation takes place. While producing my poses and they may be divided into threealloy, I may use an efl'ecient dioxidizer.

classes: aluminumcopper allovs.aluminum What I claim as new and want to protect w zinc alloys,.and aluminum-magnesium alby Letters Patent is: I

loys. These alloys have the advantage of 1. The within described alloy, composed being comparatively light as against other of aluminum in a relatively large amount, alloys of metals of similar strength. but and relatively small amounts of copper and nevertheless, their tensile strength, and in nickel, the percentage of the aluminum bemany cases, their resisting power, and their ing ninety or more. and the percentagcsof adaptability to manufacturing processes, do the copper and nickel being in the propornotcome up to the requirements which an tion of two to one. I alloy in automobile and aeroplane manufac- 2. The within described alloy, .consisting ture, or in similar uses would have to meet. of aluminum, to 97 per cent, copper Idiscovered that bv adding a certain seven and one half to two per cent. and amount of nickel to the aluminum copper nickel, two and one half to one per cent. 90 alloys, a new composition will resultwhich 3. The process of producing the within 0 is greatly. superior in all the desirable qualidescribed alloy, consisting in melting down ties mentioned above and relating to alcopper, 10 to 2% per cent, introducing loys to be used in automobile and aeroplane nickel 5 to 1 per cent in the molten copper, manufacture as Well as for 'anv other maand pouring this hardening mixture into chine parts where such qualities are needed. shot form or into strips; melting aluminum 4 I also discovered that by adding a certain '85 to 96 per cent, adding the hardener deamount of nickel to such alloys, I can mascribed hereinbe'fore, constantlv stirring vterially increase the-amount of copper inuntil complete amalgamation and using a my alloy. without running the danger of di-oxidizer. obtaining an unworkable or brittle alloy Signed at New York in the county of 50 as has been the case with aluminum copper New York and State of New Yor: this alloys heretofore whenthe copper content dayof August A. D. 1922. Y has been increased over 7 or 8 per cent. V JOSEPH SCHWARZ,

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